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avoid infinite loop on len=0

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This commit is contained in:
itojun 2000-05-26 09:32:00 +00:00
parent 42b516cd60
commit a4a78bf5ca
1 changed files with 5 additions and 2 deletions
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7
print-cdp.c
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@ -26,7 +26,7 @@
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /tcpdump/master/tcpdump/print-cdp.c,v 1.2 2000-05-16 23:54:55 assar Exp $";
"@(#) $Header: /tcpdump/master/tcpdump/print-cdp.c,v 1.3 2000-05-26 09:32:00 itojun Exp $";
#endif
#ifdef HAVE_CONFIG_H
@ -120,8 +120,11 @@ cdp_print(const u_char *p, u_int length, u_int caplen,
default:
printf( " unknown field type %02x, len %d", type, len );
}
i+=len;
/* avoid infinite loop */
if (len == 0)
break;
i+=len;
}
}